Research Article
Muthukumar Nagu*, Abdullatif A
Abstract
This paper focuses on studying the pitting corrosion tendency of austenitic stainless steels (SS 316 L and NIT 60) and carbon steel (API 5 LX 60) in the presence of elemental sulfur. The pitting corrosion tendency of alloys was studied by using cyclic polarization technique at two different temperatures with and without elemental sulfur. Surface morphology and corrosion products formed on the exposed coupons were analyzed by scanning electron microscopy (SEM) and energy dispersive X-ray (EDX). It was found that the temperature played major role on pitting corrosion of alloys in presence of elemental sulfur. SS 316 L gave high pitting resistance than other tested alloys (NIT 60 and API 5 LX 60).